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Spontaneous Murine Model of Anaplastic Thyroid Cancer
05:39

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Published on: February 3, 2023

[Hereditary thyroid cancer].

H Dralle1, A Machens, K Lorenz

  • 1Universitätsklinik für Allgemein-, Viszeral- und Gefässchirurgie, Universitätsklinikum Halle, Medizinische Fakultät der Martin-Luther-Universität Halle-Wittenberg, Halle (Saale), Ernst-Grube-Strasse 40, 06097, Halle. henning.dralle@medizin.uni-halle.de

Der Chirurg; Zeitschrift Fur Alle Gebiete Der Operativen Medizen
|September 27, 2008
PubMed
Summary
This summary is machine-generated.

Hereditary thyroid cancers, including differentiated (DTC) and medullary (MTC), often occur in young patients. Prophylactic thyroidectomy is not recommended for DTC but is advised for MTC based on genetic risk, guided by molecular and biochemical markers.

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Area of Science:

  • Endocrinology
  • Oncology
  • Genetics

Background:

  • Hereditary thyroid carcinomas account for a significant portion of differentiated thyroid cancers (DTC) and medullary thyroid cancers (MTC).
  • These hereditary forms can be part of broader cancer syndromes or isolated to the thyroid, often presenting multifocally in younger individuals.
  • Genetic mutations are the underlying cause, influencing tumor behavior and treatment strategies.

Purpose of the Study:

  • To differentiate the genetic basis and clinical management of hereditary differentiated thyroid carcinomas (DTC) versus hereditary medullary thyroid carcinomas (MTC).
  • To evaluate the indications for prophylactic thyroidectomy in hereditary thyroid cancer subtypes.
  • To establish guidelines for managing hereditary MTC based on genetic mutations and clinical presentation.

Main Methods:

  • Review of existing literature on hereditary thyroid cancer genetics and clinical outcomes.
  • Analysis of genotype-phenotype correlations in hereditary medullary thyroid carcinoma (MTC).
  • Assessment of molecular and biochemical markers for guiding prophylactic thyroidectomy decisions in MTC.

Main Results:

  • Hereditary DTC, even in syndromic variants, generally has a favorable prognosis, making prophylactic thyroidectomy unwarranted.
  • The RET proto-oncogene mutations are the established cause of hereditary MTC, with ongoing discovery of new mutations.
  • Clinical aggressiveness in MTC correlates with genotype, defining risk groups, but a wide spectrum of disease exists within these groups.

Conclusions:

  • Prophylactic thyroidectomy is not indicated for hereditary DTC due to its favorable prognosis.
  • Management of hereditary MTC requires a combined molecular-biochemical approach, including pentagastrin-stimulated calcitonin levels, to determine the optimal timing and extent of prophylactic thyroidectomy based on identified genetic risk groups.